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Related Concept Videos

Intrinsically Disordered Proteins02:18

Intrinsically Disordered Proteins

Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
Protein and Protein Structure02:15

Protein and Protein Structure

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
SDS-PAGE01:27

SDS-PAGE

Gel electrophoresis is a method that separates biological macromolecules like nucleic acids or proteins by forcing them to pass through a gel matrix under an electric field.
A variation of gel electrophoresis, termed  polyacrylamide gel electrophoresis (PAGE), is commonly used for separating proteins according to their molecular size by passing them through a polyacrylamide gel. Because of the varying charges associated with amino acid side chains, PAGE can be used to separate intact proteins...

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Updated: May 25, 2026

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
07:08

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues

Published on: July 14, 2015

A Stickiness Scale for Disordered Proteins.

Fan Cao1, Giulio Tesei1, Kresten Lindorff-Larsen1

  • 1Structural Biology and NMR Laboratory & the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark.

The Journal of Physical Chemistry. B
|May 23, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed a new scale measuring amino acid "stickiness" in disordered proteins. This scale aids in understanding protein interactions and evolution.

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Last Updated: May 25, 2026

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Published on: July 14, 2015

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13:26

Determination of Protein-ligand Interactions Using Differential Scanning Fluorimetry

Published on: September 13, 2014

Area of Science:

  • Biochemistry
  • Structural Biology
  • Bioinformatics

Background:

  • Disordered proteins lack stable 3D structures, exhibiting diverse functions and conformations.
  • Understanding amino acid propensities is crucial for predicting protein behavior.

Purpose of the Study:

  • To develop a novel scale quantifying amino acid interaction propensity relative to water for disordered proteins.
  • To compare this new scale with existing hydropathy scales.

Main Methods:

  • A data-driven approach using biophysical experiments on 115 proteins.
  • Analysis and comparison of the derived scale with 70 existing hydropathy scales.

Main Results:

  • A new 'stickiness' or hydropathy scale specific to disordered proteins was derived.
  • The new scale shows closer correlation with scales for membrane proteins and elastin-like peptides.

Conclusions:

  • The developed scale offers a tool to quantify sequence composition's role in disordered proteins.
  • This scale can enhance understanding of disordered protein interactions and evolutionary conservation.